Abstract: An electromagnetic energy converter including two plates each having an inner face; a flux variation device arranged between the inner faces, and which includes a first prismatic part, a magnet and a second prismatic part, and is arranged to pivot about an axis between two equilibrium positions, and for which the first and second prismatic parts each come into contact with an inner face; and a coil designed to be crossed by a magnetic flux generated by the magnet and guided by the two plates in a first direction when the device is in one equilibrium position, and in a second direction when said device is in the other equilibrium position.

Abstract: Exemplary practice of the present invention provides a magnetostrictive actuator characterized by linear force output and uniform magnetic biasing. A center bias magnet drives flux through series magnetostrictive bars in opposite directions while surrounding drive coils apply flux in the same direction through the bars. The net response is substantially linear with respect to the drive coil current. A second parallel set of magnetostrictive bars completes the flux path and adds to the actuator output force. Flux leakage between the parallel bars is compensated by a ferromagnetic shunt or by a tapered magnet providing uniform flux density down the length of the magnetostrictive bars. The closed flux path allows magnetic shielding of the entire actuator, if desired.

Abstract: A contactor is provided in the present utility model, the contactor comprising: a housing; a static iron core, a movable iron core, and a contact holder positioned in the housing, wherein the static iron core is fixed to the housing, the movable iron core and the static iron core are disposed opposite to each other, and the contact holder is fixed to the movable iron core; and a built-in switch positioned in the housing, wherein the built-in switch comprises a static contact piece fixed to the housing and a moving contact piece fixed to the contact holder, and the contact holder is configured to drive the moving contact piece to move so as to switch an on/off state of the built-in switch. The contactor of the present utility model has high expandability and improves the convenience of connecting to an external circuit module.

Abstract: A push button switch assembly for a vehicle includes a housing having a plurality of walls that collectively define an inner space, and an elastic button that is moveable between a first unactuated position and a second unactuated position. A plate is positioned in the housing and an actuator is pivotable between a first position and a second position. The actuator includes a magnetic element. When the elastic button is in the first unactuated position, the magnetic element biases the actuator into the first position, and when the elastic button is moved to the section actuated position, a force applied to the elastic button is transmitted to the actuator to pivot the actuator to the second position.

Abstract: The present disclosure generally relates to the design of a MEMS ohmic switch which provides for a low-impact landing of the MEMS device movable plate on the RF contact and a high restoring force for breaking the contacts to improve the lifetime of the switch. The switch has at least one contact electrode disposed off-center of the switch device and also has a secondary landing post disposed near the center of the switch device. The secondary landing post extends to a greater height above the substrate as compared to the RF contact of the contact electrode so that the movable plate contacts the secondary landing post first and then gently lands on the RF contact. Upon release, the movable plate will disengage from the RF contact prior to disengaging from the secondary landing post and have a longer lifetime due to the high restoring force.

Abstract: A power tool is provided, including a housing; an electric brushless DC motor disposed within the housing; and a power module disposed within the housing and electrically coupled to the motor. The power module includes a circuit board, a first set of power switches mounted on a first surface of the circuit board, a second set of power switches mounted on a second surface of the circuit board substantially opposite the first set of power switches and electrically coupled to the first set of power switches forming an inverter bridge circuit, power terminals arranged on a side edge of the circuit board and coupled to the output of the inverter bridge, a first heat sink mounted on the first surface of the circuit board covering the first set of power switches, and a second heat sink covering the first heat sink and at least portions of the power terminals.

Abstract: An actuator includes a first magnet whose magnetic pole surface has an N pole and a second magnet whose magnetic pole surface has an S pole. When current flows from one end of a first wiring to the other end, the current circulates in one direction at least partially on the first magnet in a first area, while it circulates in a direction opposite to the one direction at least partially on the second magnet in the first area. When current flows from one end of a second wiring to the other end, the current circulates in the direction opposite to the one direction at least partially on another first magnet in the second area, while it circulates in the one direction at least partially on another second magnet in the second area.

Abstract: A torque delivering apparatus, including: polygonal cross-section stator body having a plurality of exterior side faces of even number extending between opposite axial end faces, the stator including cylindrical bore extending between the opposite axial ends and centred on central axis of the stator body; a rotor assembly having cylindrical cross-section sized for rotation within the cylindrical bore about the central axis with at least one permanent magnet and shaft coupled to the magnet for rotation; and a plurality of solenoid coils, each coil having plurality of windings and routed to have sections extending parallel along opposite ones of the plurality of exterior side faces; wherein each of the plurality of coils is configured to selectively receive current and generate magnetic field in the stator that is applied to the rotor magnet, the rotor being subject to magnetic torque within the cylindrical bore for rotating and aligning the magnetic field of the permanent magnet with the generated magnetic fie

Abstract: A current lead assembly for minimizing heat load to a conduction cooled superconducting magnet during a ramp operation is provided. The current lead assembly includes a vacuum chamber having a through hole to enable a first end of a current lead contact to remain outside the vacuum chamber and a second end of the current lead contact to penetrate within the vacuum chamber. A vacuum boundary wall is located between the vacuum chamber and the current lead contact. At least one superconducting magnet is arranged inside of the vacuum chamber and includes a magnet lead. A second end of the current lead contact is coupled to the magnet lead via an internal lead. A vacuum cap is removably disposed to sealingly encompass therein the first end of the current lead contact during a first state of operation. The first end of the current lead contact is arranged to contact a power supply during a second state of operation, wherein the contact occurs exterior the vacuum chamber.

Abstract: A magnetic apparatus includes a first structure including a first non-magnetic material, a second structure including a second non-magnetic material on a first portion of the first structure, a third structure including the second non-magnetic material on a second portion of the first structure. The magnetic apparatus further includes a first magnetic structure adjacent to a first sidewall of the second structure, a second magnetic structure adjacent to a first sidewall of the third structure, a third magnetic structure adjacent to a second sidewall of the second structure, adjacent to a second sidewall of the third structure and extends onto a third portion of the first structure. A magnet is coupled with the first, second and third magnetic structures.

Abstract: A relay includes a fixed terminal, a fixed contact connected to the fixed terminal, a movable contact piece facing the fixed terminal, a movable contact, a card, and a drive unit configured to generate a driving force to operate the card. The movable contact is connected to the movable contact piece and faces the fixed contact. The card is made from resin and presses the movable contact piece to operate the movable contact piece. The card includes a first pressing portion and a second pressing portion. The first and second pressing portions are configured to contact the movable contact piece and press the movable contact piece. The second pressing portion is disposed apart from the first pressing portion in a width direction of the movable contact piece. The first and second pressing portions are disposed inside side edges of the movable contact piece in the width direction respectively.

Abstract: A movable contact piece is movable in an open direction and a closed direction with respect to a first fixed terminal and a second fixed terminal. A first movable contact is connected to the movable contact piece. The first movable contact is disposed facing a first fixed contact. A second movable contact is connected to the movable contact piece. The second movable contact is disposed facing a second fixed contact. At least one of the first fixed contact or the first movable contact has a material property different from that of at least one of the second fixed contact or the second movable contact.

Abstract: An electromagnet device moves two moving contacts from one of a closed position or an open position to the other position when an electric current flows through a coil. A regenerative current coming from the coil flows through a regeneration unit when the coil makes a transition from an energized state where the coil is supplied with an electric current from a power supply to a non-energized state where the coil is supplied with no electric current from the power supply. The control unit causes the regenerative current to flow through a load by controlling a switch when the coil makes the transition from the energized state to the non-energized state.

Abstract: Transparent structures for portions of electronic device housings are disclosed. The transparent structures are formed from multiple layers of transparent (optically clear) materials. The multiple layers can include at least an outer glass layer and one or more other transparent layers that can be either glass or polymer layers. The multiple layers can be bonded together with one or more lamination layers. Accordingly, multi-layer transparent structures that are formed from multiple layers bonded together are able to be not only thin but also sufficiently strong and resistant to damage. The multi-layer transparent structures are well suited for use in consumer products, such as consumer electronic devices (e.g., portable electronic devices).

Abstract: An electrical contactor system includes a stationary contactor having a stationary contact, a moving contactor having a moving contact, a rotating member, a magnetic blow-out arc quenching device including a permanent magnet, and an isolation arc quenching device. The moving contactor is mounted on the rotating member and is rotatable between a connected position and a disconnected position. The moving contact is in electrical contact with the stationary contact when the moving contactor is rotated to the connected position, the moving contact is separated from the stationary contact when the moving contactor is rotated to the disconnected position. The permanent magnet is statically disposed in a vicinity of the stationary contactor for elongating an arc between the stationary contact and the moving contact by an electromagnetic force so as to extinguish the arc. The isolation arc quenching device pushes the arc toward the permanent magnet so as to force the arc to move to a vicinity of the permanent magnet.

Abstract: The present invention relates to a laminated stator stack for an electric machine comprising, a plurality of stator teeth and stator slots, for receiving at least one electrical conductor, at least one axial coolant duct, at least one outwards radial coolant duct and at least one inwards radial coolant duct, wherein the ducts are arranged internally in the laminated stator stack and interconnected to form a predominantly closed flow path, the outwards and inwards radial coolant ducts extent into the stator teeth, for cooling of the stator teeth, and the laminated stator stack comprises a plurality of lamination sheets.

Abstract: A disc member is for a Thomson coil actuator of an electrical switching apparatus. The Thomson coil actuator has at least one generally planar coil. The disc member includes at least one annular-shaped conductive member structured to be driven by the coil, and a structural support member directly coupled to the conductive member.

Abstract: A relay includes a first fixed contact, a second fixed contact, a movable contact piece having first and second movable contacts, a contact piece holding unit configured to hold the movable contact piece, and first to fourth magnets. The first magnet and the second magnet are disposed so that same poles thereof face each other. The movable contact piece is disposed between the first magnet and the second magnet in a width direction of the movable contact piece. The third magnet is disposed so as to increase a magnetic flux in a longitudinal direction of the movable contact piece at a position between the first fixed contact and the first movable contact. The fourth magnet is disposed so as to increase a magnetic flux in the longitudinal direction of the movable contact piece at a position between the second fixed contact and the second movable contact.

Abstract: The present disclosure provides modular magnetic anastomosis devices that can be implemented in digestive surgery or in any circumstance of anastomosis between adjacent organs or two hollow viscera. The device is minimally invasive and easily and quickly delivered using laparoscopic or endoscopic procedures.

Abstract: A rupture resistant relay. The relay has an outer housing with contacts extending through the outer housing. An outer core is positioned in the outer housing. A cover member is provided on the outer core. The cover member and the outer core encapsulate an interior chamber. A support member extends over the cover member. The support member is integrally attached to the outer core. The cover member prevents components the cover member and components of the interior chamber from projecting out of the envelope of the outer housing when an explosion occurs in the interior chamber.